WO2013057115A1 - System and method for controlling the quality of an object - Google Patents

System and method for controlling the quality of an object Download PDF

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Publication number
WO2013057115A1
WO2013057115A1 PCT/EP2012/070510 EP2012070510W WO2013057115A1 WO 2013057115 A1 WO2013057115 A1 WO 2013057115A1 EP 2012070510 W EP2012070510 W EP 2012070510W WO 2013057115 A1 WO2013057115 A1 WO 2013057115A1
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WO
WIPO (PCT)
Prior art keywords
inspection zone
inspected
laser
product
measurement
Prior art date
Application number
PCT/EP2012/070510
Other languages
French (fr)
Inventor
Hubert Voillaume
Original Assignee
European Aeronautic Defence And Space Company Eads France
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by European Aeronautic Defence And Space Company Eads France filed Critical European Aeronautic Defence And Space Company Eads France
Priority to US14/349,187 priority Critical patent/US20140249663A1/en
Priority to RU2014119933A priority patent/RU2620868C2/en
Priority to CA2852791A priority patent/CA2852791A1/en
Priority to EP12775479.4A priority patent/EP2769196A1/en
Priority to MX2014004569A priority patent/MX338117B/en
Priority to SG11201400932PA priority patent/SG11201400932PA/en
Priority to CN201280050168.2A priority patent/CN104114992B/en
Priority to BR112014009088A priority patent/BR112014009088A2/en
Publication of WO2013057115A1 publication Critical patent/WO2013057115A1/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/043—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using fluoroscopic examination, with visual observation or video transmission of fluoroscopic images
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B15/00—Systems controlled by a computer
    • G05B15/02—Systems controlled by a computer electric
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/10—Different kinds of radiation or particles
    • G01N2223/101—Different kinds of radiation or particles electromagnetic radiation
    • G01N2223/1016—X-ray
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/60—Specific applications or type of materials
    • G01N2223/643—Specific applications or type of materials object on conveyor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/60—Specific applications or type of materials
    • G01N2223/645—Specific applications or type of materials quality control

Definitions

  • the invention relates to a system and a method for evaluating the quality of an object manufactured in particular on a high-speed production line.
  • the objective of the present invention is therefore to propose a system and a method for the automatic evaluation of the quality of a product or a part resulting from a production line, simple in their design and in their operating mode. , fast and to group together all control and evaluation operations on a single item to save on recurring labor costs and cycle times.
  • the invention aims in particular a system for automatic and flexible evaluation of the quality of a product or a piece capable of absorbing high production rates while protecting the operator or operators present on the production line of any laser light leaks that may occur by reflecting laser beams on the part or product to inspect, especially when they have complex shapes.
  • Another object of the present invention is an installation for manufacturing a part or a product or an assembly comprising such a control system placed at the end of the chain.
  • the invention relates to a system for controlling the quality of an object.
  • this control system comprises: a security enclosure comprising an input port through which said object to be inspected is introduced into said enclosure and at least one output port, said enclosure having an inspection zone,
  • a transport device for conveying said object to be inspected into said inspection zone and ensuring its evacuation through said at least one exit port
  • said security enclosure is made of an opaque material for the wavelengths of said laser beams in operation, respectively, for the wavelengths of said operating laser beams and said X-rays, to prevent radiation leakage.
  • This control system thus advantageously makes it possible to concentrate on a single item all the stages of evaluation of the quality of a part, a product or an assembly. It also ensures the protection of the operator (s) working on the production line of accidental laser light and / or X-ray leakage.
  • said transport device comprising a conveyor belt, said weighing device is placed under this band,
  • the object structure analysis assembly in said inspection area comprises an X-ray source and a sensor, the object to be inspected being placed in said inspection area between said X-ray source and said X-ray source and said sensor sensor,
  • said non-contacting dimensional measurement assembly of the object in said inspection area comprises a laser interferometry dimensional measurement assembly and / or a projection set of a light pattern and detection by a stereovision system, the system comprises a presence detector for stopping said transport device when the object to be inspected is placed in said inspection zone,
  • the system comprises a central unit connected to a recording medium comprising at least one information file previously recorded on this recording medium to define the reference parameters of said object , said central unit receiving each of said signals for comparison with said reference parameters, the system comprises a device for marking said object when the evaluation of its quality reveals one or more defects,
  • the system further comprises a control unit for the surface appearance of the object and / or an Optical Coherence Tomography (OCT) device.
  • OCT Optical Coherence Tomography
  • This last device makes it possible, for example, to control the resin flashes in the spokes of the folded curved pieces.
  • the invention also relates to an installation for the production of an object, this installation being equipped with a system for controlling the quality of this object as described above.
  • the invention also relates to a method for evaluating the quality of an object in which said object is positioned in an inspection zone and then at least the first of the following steps is carried out on this object placed in this inspection zone:
  • the result obtained is compared with one or more reference measurements, if they correspond to the uncertainties of measurement, we proceed to the next step, if they are distinct, we put the object to the rebus.
  • a first laser beam is sent on said object to generate ultrasonic waves in said object to be inspected, said object is illuminated with a second laser beam so that part of this second beam is reflected by said object and this part of the second reflected beam is measured by interferometry, all of these laser beams passing through the same optical reading head.
  • FIG. 1 shows schematically in profile a quality control system of an object according to a particular embodiment of the invention
  • FIG. 2 is a partial and enlarged view of the transport device of Figure 1;
  • Figures 1 and 2 schematically show a quality control system of an object according to a preferred embodiment of the invention.
  • This control system is placed at the end of the production line of products 1, the products being conveyed to the system by a conveying device 2 which is here a conveyor belt.
  • the products 1 to be inspected are deposited on this treadmill without very precise positioning.
  • Each product 1 enters a security enclosure 3 through an input port 4 of this enclosure, arrives in an inspection zone 5 of this enclosure where it is detected by a presence detector (not shown) which then stops the device. 2 to allow the evaluation of its quality.
  • the product 1 to be inspected which is in the inspection zone 5, is ready to be evaluated sequentially by an arrangement of measuring and control devices.
  • the conveying device 2 After this evaluation of the quality of the product 1 and if the latter is found to comply with manufacturing tolerances both in terms of dimensions and surface quality and shape, the conveying device 2 restarts and evacuated by a output port 6.
  • the defective product is marked with a marking device (not shown) prior to its evacuation through the exit port 6.
  • a marking device not shown
  • the marking of the product 1 exhibiting one or more defects can be done by projecting a paint on its surface.
  • the product 1 to be inspected is weighed by a weighing apparatus 7.
  • the weighing apparatus 7 is here a scale placed under the conveyor belt 2 .
  • This weighing of the product 1 may allow pre-sorting of the products 1 in the event of a defect.
  • Overloading of the product 1 with respect to a reference weight may mean the presence of a foreign body.
  • an underload of the product 1 with respect to this reference weight may mean the presence of air bubbles and / or excessive porosity of the latter.
  • the weighing apparatus 7 supplies an electric signal in response to the weighing of the product 1, this electrical signal representative of the weight of the product 1 thus determined, being sent to a central unit (not shown) connected to a recording medium (not shown) comprising at least one data file or a library of data files previously recorded on this recording medium to define the reference parameters of the product 1 to be inspected.
  • This central unit here comprises a microprocessor configured to perform the comparison between the measurement signals received from the different evaluation devices of the system and the reference parameters.
  • the three-dimensional measurements of this product 1 are then determined by means of a non-contact dimensional measurement assembly of the product 1 placed in the inspection zone 5.
  • This set of non-contact dimensional measurement comprises here a set of measurement by projection of a luminous pattern such as a band or a cross on the surface of the product 1 and the detection of this luminous pattern by a stereovision system comprising at least two cameras 8, 9 simultaneously taking shots of the projected light pattern on the surface of the product 1.
  • These cameras 8, 9 are for example CCD matrix.
  • Each of these cameras 8, 9 sends a signal representative of the measurement acquired by the corresponding camera to the central unit which determines from these signals the dimensions of the product 1. These dimensions are then compared to the reference dimensions of the product 1 stored on the recording medium.
  • the structure of the product 1 present in the inspection zone 5 is analyzed.
  • a set of analysis of the structure of the object in said inspection zone comprising:
  • a first laser source 10 intended to generate a first laser beam for creating ultrasonic waves in the product 1,
  • a second laser source 1 1 intended to generate a second laser beam for illuminating the product 1 to be inspected
  • an interferometer 12 for measuring a part of the second beam reflected by the product 1 placed in the inspection zone 5, this interferometer 12 being able to generate an electrical signal representative of this measurement, which is sent to the central unit for comparison with a reference parameter.
  • first and second laser sources 10, 11 and the interferometer 12 are optically coupled to a measuring head 13 placed in the chamber 3, this measuring head 13 comprising an optical scanner for scanning the surface of the product 1 to inspect.
  • This optical scanner here includes two mirrors mounted on galvanometer.
  • the first laser source 10 which is here a carbon dioxide (CO 2 ) laser, generates a first laser beam of wavelength 10.6 ⁇ having an energy of the order of 200 mJ.
  • This first beam is received by the optical scanner of the measuring head 13 which directs it to the product 1 placed in the inspection zone 5 so as to allow the scan of this product 1.
  • This first laser beam generates ultrasonic waves in the product 1 to be inspected.
  • the second beam emitted by the second laser source 1 1 optically coupled to the same optical measurement head 13, is also sent by this measuring head 13 to the product 1 to inspect. Part of this second beam is then reflected by the product 1 being out of phase by the ultrasonic waves generated by the first beam in this product 1.
  • the reflected laser beam is then received by the interferometer 12 capable of generating an electrical signal representative of this reflected beam portion thus measured.
  • This electrical signal is sent to the central processing unit for comparison with one or more reference parameters of the product 1.
  • the treadmill 2 advances to evacuate this product 1 and place in the inspection zone 5, a new product 1 to inspect.
  • the optical scanner may comprise a single scanning mirror along an axis perpendicular to the longitudinal axis of the treadmill 2.
  • the treadmill is then used as a second scanning axis so as to allow the scan of each product 1.
  • the interferometer 12 is here a Fabry-Perot interferometer and / or a two-wave mixing interferometer (TWM).
  • the security enclosure 3 is made of an opaque material for the wavelengths of the laser beams in operation to prevent any leakage of laser light that could harm the health of operators operating on the production line.

Abstract

The invention relates to a system for controlling the quality of an object leaving a production facility. According to the invention, the system comprises: a chamber including an inlet port through which the object to be inspected is inserted into the chamber and at least one outlet port, said chamber having an inspection zone (5); a transport device for conveying the object to be inspected into the inspection zone (5) and for releasing same through the at least one outlet port; a weighing apparatus (7) for weighing the object in the inspection zone (5); an assembly for the contact-free dimensional measuring of the object in the inspection zone (5); and an assembly for analysing the structure of the object in the inspection zone (5) by means of laser beams and/or X-rays. The aforementioned chamber is made from a material that is opaque for the wavelengths of the laser beams during operation and the X-rays, in order to prevent any radiation leakage.

Description

Système et procédé de contrôle de la qualité d'un objet  System and method for controlling the quality of an object
L'invention concerne un système et un procédé d'évaluation de la qualité d'un objet fabriqué notamment sur une chaîne de production à forte cadence. The invention relates to a system and a method for evaluating the quality of an object manufactured in particular on a high-speed production line.
Certains domaines industriels tels que l'aéronautique ou encore l'aérospatiale, requièrent que chaque pièce composant une structure soit réalisée avec une très grande précision dans ses dimensions, sa forme ou encore son aspect de surface et de savoir si chacune de ces pièces respecte bien les tolérances de fabrication requises.  Some industrial sectors such as aeronautics or aerospace, require that each piece composing a structure is made with a very great precision in its dimensions, its shape or its surface appearance and whether each of these parts respects the manufacturing tolerances required.
Il est en effet capital dans des domaines techniques tels que celui de l'aéronautique de s'assurer de l'absence de défauts dans une pièce de sorte que ce défaut ne se propage pas suite aux sollicitations de service.  It is indeed crucial in technical areas such as aeronautics to ensure the absence of defects in a room so that this fault does not spread following service requests.
On connaît ainsi différentes méthodes permettant d'évaluer la qualité de fabrication d'une pièce ou d'un produit.  There are thus known different methods for evaluating the manufacturing quality of a part or a product.
L'inspection manuelle des pièces ou produits issus d'une chaîne de fabrication est rarement mise en œuvre dans des domaines industriels tels que l'aéronautique, car elle est trop consommatrice de temps et certains défauts restent par ailleurs difficilement repérables à l'œil nu de sorte qu'un contrôle manuel dépend principalement de l'expérience du contrôleur.  Manual inspection of parts or products from a production line is rarely implemented in industrial areas such as aeronautics, because it is too time consuming and some defects are also difficult to identify with the naked eye so that a manual control depends mainly on the controller's experience.
Ces interventions manuelles sont donc longues, coûteuses et présentent une marge d'erreur incompatible avec les exigences toujours plus élevées des domaines industriels tels que l'aéronautique et le spatial.  These manual interventions are therefore long, costly and have a margin of error incompatible with the ever-increasing requirements of industrial fields such as aeronautics and space.
On connaît également des méthodes de contrôle automatisé parmi lesquelles on citera notamment celle mettant en œuvre des dispositifs de palpation pour déterminer les dimensions et la forme d'une pièce ou d'un produit fini. There are also known methods of automated control among which we will notably mention that implementing palpation to determine the dimensions and shape of a part or finished product.
Toutefois, ces dispositifs de palpation sont complexes, peu flexibles et mal adaptés à des pièces de petites dimensions.  However, these palpation devices are complex, inflexible and poorly adapted to small parts.
De plus, le contrôle de ces petites pièces lorsqu'elles sont de forme complexe est très difficilement automatisable.  In addition, the control of these small parts when they are of complex shape is very difficult to automate.
L'automatisation requiert également une programmation qui peut s'avérer lourde.  Automation also requires programming that can be cumbersome.
On connaît encore des méthodes d'évaluation de la qualité d'une pièce par ultrasons.  Methods for evaluating the quality of a part by ultrasound are still known.
Toutefois, une petite dérive dans la géométrie de la pièce ou du produit, acceptable dans les critères qualité, peut conduire à des problèmes de positionnement rédhibitoires lorsqu'il s'agit de contrôler par ultrasons car le faisceau acoustique doit en permanence être perpendiculaire à la surface de cette pièce ou de ce produit.  However, a small drift in the geometry of the part or the product, acceptable in the quality criteria, can lead to unacceptable positioning problems when it comes to ultrasonic testing because the acoustic beam must permanently be perpendicular to the surface of that part or product.
L'objectif de la présente invention est donc de proposer un système et un procédé pour l'évaluation automatique de la qualité d'un produit ou d'une pièce issus d'une chaîne de fabrication, simple dans leur conception et dans leur mode opératoire, rapide et permettant de regrouper l'ensemble des opérations de contrôle et d'évaluation sur un seul poste pour gagner sur les coûts de main d'œuvre récurrents et sur les temps de cycle.  The objective of the present invention is therefore to propose a system and a method for the automatic evaluation of the quality of a product or a part resulting from a production line, simple in their design and in their operating mode. , fast and to group together all control and evaluation operations on a single item to save on recurring labor costs and cycle times.
L'invention vise notamment un système d'évaluation automatique et flexible de la qualité d'un produit ou d'une pièce capable d'absorber de fortes cadences de fabrication tout en protégeant le ou les opérateurs présents sur la chaîne de fabrication d'éventuelles fuites de lumière laser qui pourraient survenir par réflexion des faisceaux lasers sur la pièce ou le produit à inspecter, notamment lorsque ceux-ci ont des formes complexes.  The invention aims in particular a system for automatic and flexible evaluation of the quality of a product or a piece capable of absorbing high production rates while protecting the operator or operators present on the production line of any laser light leaks that may occur by reflecting laser beams on the part or product to inspect, especially when they have complex shapes.
Un autre objet de la présente invention est une installation de fabrication d'une pièce ou d'un produit ou encore d'un assemblage comprenant un tel système de contrôle placé en bout de chaîne.  Another object of the present invention is an installation for manufacturing a part or a product or an assembly comprising such a control system placed at the end of the chain.
A cet effet, l'invention concerne un système de contrôle de la qualité d'un objet.  To this end, the invention relates to a system for controlling the quality of an object.
Selon l'invention, ce système de contrôle comprend: - une enceinte de sécurité comportant un port d'entrée par lequel ledit objet à inspecter est introduit dans ladite enceinte et au moins un port de sortie, ladite enceinte ayant une zone d'inspection, According to the invention, this control system comprises: a security enclosure comprising an input port through which said object to be inspected is introduced into said enclosure and at least one output port, said enclosure having an inspection zone,
- un dispositif de transport pour acheminer ledit objet à inspecter dans ladite zone d'inspection et assurer son évacuation au travers dudit au moins un port de sortie,  a transport device for conveying said object to be inspected into said inspection zone and ensuring its evacuation through said at least one exit port,
- un appareil de pesée pour peser ledit objet dans ladite zone d'inspection,  a weighing apparatus for weighing said object in said inspection zone,
- un ensemble de mesure dimensionnelle sans contact de l'objet dans ladite zone d'inspection,  a set of dimensional measurement without contact of the object in said inspection zone,
- un ensemble d'analyse de la structure de l'objet dans ladite zone d'inspection par faisceaux lasers, respectivement et/ou par rayons X, et  a set of analysis of the structure of the object in said inspection zone by laser beams, respectively and / or by X-rays, and
- ladite enceinte de sécurité est réalisée dans un matériau opaque pour les longueurs d'onde desdits faisceaux lasers en fonctionnement, respectivement, pour les longueurs d'onde desdits faisceaux lasers en fonctionnement et lesdits rayons X, pour prévenir toute fuite de rayonnement.  said security enclosure is made of an opaque material for the wavelengths of said laser beams in operation, respectively, for the wavelengths of said operating laser beams and said X-rays, to prevent radiation leakage.
Ce système de contrôle permet ainsi avantageusement de concentrer sur un seul poste l'ensemble des étapes d'évaluation de la qualité d'une pièce, d'un produit ou d'un assemblage. Elle assure également la protection du ou des opérateurs travaillant sur la chaîne de fabrication de fuites accidentelles de lumière laser et/ou de rayons X.  This control system thus advantageously makes it possible to concentrate on a single item all the stages of evaluation of the quality of a part, a product or an assembly. It also ensures the protection of the operator (s) working on the production line of accidental laser light and / or X-ray leakage.
Dans différents modes de réalisation particuliers de ce système d'évaluation, chacun ayant ses avantages particuliers et susceptibles de nombreuses combinaisons techniques possibles:  In different particular embodiments of this evaluation system, each having its particular advantages and likely to have many possible technical combinations:
- ledit dispositif de transport comportant une bande de convoyage, ledit dispositif de pesée est placé sous cette bande,  said transport device comprising a conveyor belt, said weighing device is placed under this band,
l'ensemble d'analyse de la structure de l'objet dans ladite zone d'inspection comprend une source de rayons X et un capteur, l'objet à inspecter étant placé dans ladite zone d'inspection entre ladite source de rayons X et ledit capteur,  the object structure analysis assembly in said inspection area comprises an X-ray source and a sensor, the object to be inspected being placed in said inspection area between said X-ray source and said X-ray source and said sensor sensor,
ledit ensemble de mesure dimensionnelle sans contact de l'objet dans ladite zone d'inspection comprend un ensemble de mesure dimensionnelle par interférométrie laser et/ou un ensemble de mesure par projection d'un motif lumineux et détection par un système de stéréovision, le système comprend un détecteur de présence pour stopper ledit dispositif de transport lorsque l'objet à inspecter est placé dans ladite zone d'inspection, said non-contacting dimensional measurement assembly of the object in said inspection area comprises a laser interferometry dimensional measurement assembly and / or a projection set of a light pattern and detection by a stereovision system, the system comprises a presence detector for stopping said transport device when the object to be inspected is placed in said inspection zone,
ledit appareil de pesée émettant un signal en réponse à la pesée dudit objet, ledit ensemble de mesure dimensionnelle sans contact de l'objet émettant un signal de mesure dimensionnelle de l'objet et ledit ensemble d'analyse de la structure de l'objet émettant un signal relatif à la mesure d'analyse structurelle dudit objet, le système comporte une unité centrale reliée à un support d'enregistrement comprenant au moins un fichier d'informations préalablement enregistré sur ce support d'enregistrement pour définir les paramètres de référence dudit objet, ladite unité centrale recevant chacun desdits signaux pour les comparer auxdits paramètres de référence, le système comprend un dispositif de marquage dudit objet lorsque l'évaluation de sa qualité révèle un ou plusieurs défauts,  said weighing apparatus emitting a signal in response to the weighing of said object, said non-contacting dimensional measuring assembly of the object emitting a dimensional measurement signal of the object and said analyzing assembly of the structure of the emitting object a signal relating to the structural analysis measurement of said object, the system comprises a central unit connected to a recording medium comprising at least one information file previously recorded on this recording medium to define the reference parameters of said object , said central unit receiving each of said signals for comparison with said reference parameters, the system comprises a device for marking said object when the evaluation of its quality reveals one or more defects,
- le système comprend de plus un ensemble de contrôle de l'aspect de surface de l'objet et/ou un dispositif de tomographie par cohérence optique (OCT - "Optical cohérent Tomography").  the system further comprises a control unit for the surface appearance of the object and / or an Optical Coherence Tomography (OCT) device.
Ce dernier dispositif permet par exemple de contrôler les flashs de résine dans les rayons des pièces courbes pliées.  This last device makes it possible, for example, to control the resin flashes in the spokes of the folded curved pieces.
L'invention concerne également une installation pour la production d'un objet, cette installation étant équipée d'un système de contrôle de la qualité de cet objet tel que décrit précédemment.  The invention also relates to an installation for the production of an object, this installation being equipped with a system for controlling the quality of this object as described above.
L'invention concerne encore un procédé d'évaluation de la qualité d'un objet dans lequel on positionne ledit objet dans une zone d'inspection puis on réalise au moins la première des étapes suivantes sur cet objet placé dans cette zone d'inspection:  The invention also relates to a method for evaluating the quality of an object in which said object is positioned in an inspection zone and then at least the first of the following steps is carried out on this object placed in this inspection zone:
a) on pèse ledit objet,  a) weighing said object,
b) on réalise une mesure dimensionnelle sans contact dudit objet, c) on réalise une analyse structurelle dudit objet, et  b) a non-contact dimensional measurement of said object is performed, c) a structural analysis of said object is performed, and
- à l'issue de chacune de ces étapes, on compare le résultat obtenu avec une ou plusieurs mesures de référence, si elles correspondent aux incertitudes de mesure près, on passe à l'étape suivante, si elles sont distinctes, on met l'objet au rébus.  - at the end of each of these steps, the result obtained is compared with one or more reference measurements, if they correspond to the uncertainties of measurement, we proceed to the next step, if they are distinct, we put the object to the rebus.
Avantageusement, on contrôle en plus l'aspect de surface de cet objet. De préférence, à l'étape d'analyse structurelle dudit objet, on envoie un premier faisceau laser sur ledit objet pour générer des ondes ultrasonores dans ledit objet à inspecter, on illumine ledit objet avec un second faisceau laser de sorte qu'une partie de ce deuxième faisceau soit réfléchie par ledit objet et on mesure par interférométrie cette partie du deuxième faisceau réfléchie, l'ensemble de ces faisceaux laser passant par une même tête de lecture optique. Advantageously, it controls in addition the surface appearance of this object. Preferably, at the step of structural analysis of said object, a first laser beam is sent on said object to generate ultrasonic waves in said object to be inspected, said object is illuminated with a second laser beam so that part of this second beam is reflected by said object and this part of the second reflected beam is measured by interferometry, all of these laser beams passing through the same optical reading head.
L'invention sera décrite plus en détail en référence aux dessins annexés dans lesquels:  The invention will be described in more detail with reference to the accompanying drawings in which:
- la figure 1 représente schématiquement de profil un système de contrôle de la qualité d'un objet selon un mode de réalisation particulier de l'invention ;  - Figure 1 shows schematically in profile a quality control system of an object according to a particular embodiment of the invention;
- la figure 2 est une vue partielle et élargie du dispositif de transport de la Figure 1 ;  - Figure 2 is a partial and enlarged view of the transport device of Figure 1;
Les Figures 1 et 2 montrent schématiquement un système de contrôle de la qualité d'un objet selon un mode de réalisation préféré de l'invention. Figures 1 and 2 schematically show a quality control system of an object according to a preferred embodiment of the invention.
Ce système de contrôle est placé en bout de ligne de production de produits 1 , les produits étant acheminés vers le système par un dispositif de convoyage 2 qui est ici un tapis roulant. Les produits 1 à inspecter sont déposés sur ce tapis roulant sans positionnement très précis.  This control system is placed at the end of the production line of products 1, the products being conveyed to the system by a conveying device 2 which is here a conveyor belt. The products 1 to be inspected are deposited on this treadmill without very precise positioning.
Chaque produit 1 pénètre dans une enceinte 3 de sécurité par un port d'entrée 4 de cette enceinte, arrive dans une zone d'inspection 5 de cette enceinte où il est détecté par un détecteur de présence (non représenté) qui stoppe alors le dispositif de convoyage 2 pour permettre l'évaluation de sa qualité.  Each product 1 enters a security enclosure 3 through an input port 4 of this enclosure, arrives in an inspection zone 5 of this enclosure where it is detected by a presence detector (not shown) which then stops the device. 2 to allow the evaluation of its quality.
Le produit 1 à inspecter qui se trouve dans la zone d'inspection 5, est prêt à être évalué séquentiellement par un arrangement de dispositifs de mesure et de contrôle.  The product 1 to be inspected which is in the inspection zone 5, is ready to be evaluated sequentially by an arrangement of measuring and control devices.
A l'issue de cette évaluation de la qualité du produit 1 et si ce dernier est trouvé conforme aux tolérances de fabrication tant en terme de dimensions que de qualité de surface et de forme, le dispositif de convoyage 2 redémarre et l'évacué par un port de sortie 6.  After this evaluation of the quality of the product 1 and if the latter is found to comply with manufacturing tolerances both in terms of dimensions and surface quality and shape, the conveying device 2 restarts and evacuated by a output port 6.
S'il est analysé comme étant non conforme, le produit défectueux est marqué par un dispositif de marquage (non représenté) préalablement à son évacuation par le port de sortie 6. A titre illustratif, le marquage du produit 1 présentant un ou plusieurs défauts peut se faire par projection d'une peinture à sa surface. If it is analyzed as non-compliant, the defective product is marked with a marking device (not shown) prior to its evacuation through the exit port 6. By way of illustration, the marking of the product 1 exhibiting one or more defects can be done by projecting a paint on its surface.
Dans une première étape d'évaluation de la qualité du produit 1 issu de la ligne de production, le produit 1 à inspecter est pesé par un appareil de pesée 7. L'appareil de pesée 7 est ici une balance placée sous le tapis roulant 2.  In a first step of assessing the quality of the product 1 from the production line, the product 1 to be inspected is weighed by a weighing apparatus 7. The weighing apparatus 7 is here a scale placed under the conveyor belt 2 .
Cette pesée du produit 1 peut permettre un pré-tri des produits 1 en cas de défaut. Une surcharge du produit 1 par rapport à un poids de référence pourra signifier la présence de corps étranger. A l'inverse, une sous-charge du produit 1 par rapport à ce poids de référence pourra signifier une présence de bulles d'air et/ou une porosité excessive de ce dernier.  This weighing of the product 1 may allow pre-sorting of the products 1 in the event of a defect. Overloading of the product 1 with respect to a reference weight may mean the presence of a foreign body. Conversely, an underload of the product 1 with respect to this reference weight may mean the presence of air bubbles and / or excessive porosity of the latter.
Afin de procéder à cette comparaison, l'appareil de pesée 7 fournit un signal électrique en réponse à la pesée du produit 1 , ce signal électrique représentatif du poids du produit 1 ainsi déterminé, étant envoyé à une unité centrale (non représentée) reliée à un support d'enregistrement (non représenté) comprenant au moins un fichier de données ou une bibliothèque de fichiers de données préalablement enregistrés sur ce support d'enregistrement pour définir les paramètres de référence du produit 1 à inspecter.  In order to carry out this comparison, the weighing apparatus 7 supplies an electric signal in response to the weighing of the product 1, this electrical signal representative of the weight of the product 1 thus determined, being sent to a central unit (not shown) connected to a recording medium (not shown) comprising at least one data file or a library of data files previously recorded on this recording medium to define the reference parameters of the product 1 to be inspected.
Cette unité centrale comporte ici un micro processeur configuré pour réaliser la comparaison entre les signaux de mesure reçus des différents dispositifs d'évaluation du système et les paramètres de référence.  This central unit here comprises a microprocessor configured to perform the comparison between the measurement signals received from the different evaluation devices of the system and the reference parameters.
Si le poids mesuré est égal au poids de référence aux incertitudes de mesure près, on détermine alors les mesures tridimensionnelles de ce produit 1 grâce à un ensemble de mesure dimensionnelle sans contact du produit 1 placé dans la zone d'inspection 5.  If the measured weight is equal to the reference weight to the measurement uncertainties, the three-dimensional measurements of this product 1 are then determined by means of a non-contact dimensional measurement assembly of the product 1 placed in the inspection zone 5.
Cet ensemble de mesure dimensionnelle sans contact comprend ici un ensemble de mesure par projection d'un motif lumineux tel qu'une bande ou une croix à la surface du produit 1 et la détection de ce motif lumineux par un système de stéréovision comportant au moins deux caméras 8, 9 prenant simultanément des prises de vue du motif lumineux projeté à la surface du produit 1 . Ces caméras 8, 9 sont par exemple à matrice CCD.  This set of non-contact dimensional measurement comprises here a set of measurement by projection of a luminous pattern such as a band or a cross on the surface of the product 1 and the detection of this luminous pattern by a stereovision system comprising at least two cameras 8, 9 simultaneously taking shots of the projected light pattern on the surface of the product 1. These cameras 8, 9 are for example CCD matrix.
Cette méthode de mesure dimensionnelle étant connue de l'état de l'art, elle ne sera pas décrite en détails ci-après. On rappellera simplement que la stéréovision permet de déterminer la position spatiale de points à partir des coordonnées de leurs images dans deux vues différentes afin de réaliser des mesures tridimensionnelles du produit 1 . As this dimensional measurement method is known from the state of the art, it will not be described in detail hereinafter. It will simply be recalled that the stereovision makes it possible to determine the spatial position of points from the coordinates of their images in two different views in order to perform three-dimensional measurements of the product 1.
Chacune de ces caméras 8, 9 envoie un signal représentatif de la mesure acquise par la caméra correspondante à l'unité centrale qui détermine à partir de ces signaux les dimensions du produit 1 . Ces dimensions sont ensuite comparées aux dimensions de référence du produit 1 stockées sur le support d'enregistrement.  Each of these cameras 8, 9 sends a signal representative of the measurement acquired by the corresponding camera to the central unit which determines from these signals the dimensions of the product 1. These dimensions are then compared to the reference dimensions of the product 1 stored on the recording medium.
Si les dimensions ainsi déterminées du produit 1 correspondent aux dimensions de référence aux incertitudes de mesure près, on analyse alors la structure du produit 1 présent dans la zone d'inspection 5.  If the dimensions thus determined of the product 1 correspond to the reference dimensions to the measurement uncertainties, then the structure of the product 1 present in the inspection zone 5 is analyzed.
Pour cela, on met en œuvre un ensemble d'analyse de la structure de l'objet dans ladite zone d'inspection comprenant :  For this purpose, a set of analysis of the structure of the object in said inspection zone comprising:
- une première source laser 10 destinée à générer un premier faisceau laser pour créer des ondes ultrasonores dans le produit 1 ,  a first laser source 10 intended to generate a first laser beam for creating ultrasonic waves in the product 1,
- une deuxième source laser 1 1 destinée à générer un deuxième faisceau laser pour illuminer le produit 1 à inspecter,  a second laser source 1 1 intended to generate a second laser beam for illuminating the product 1 to be inspected,
- un interféromètre 12 pour mesurer une partie du deuxième faisceau réfléchie par le produit 1 placé dans la zone d'inspection 5, cet interféromètre 12 étant apte à générer un signal électrique représentatif de cette mesure, lequel est envoyé vers l'unité centrale pour comparaison avec un paramètre de référence.  an interferometer 12 for measuring a part of the second beam reflected by the product 1 placed in the inspection zone 5, this interferometer 12 being able to generate an electrical signal representative of this measurement, which is sent to the central unit for comparison with a reference parameter.
Ces première et deuxième sources laser 10, 1 1 ainsi que l'interféromètre 12 sont couplées optiquement à une tête de mesure 13 placée dans l'enceinte 3, cette tête de mesure 13 comportant un scanner optique permettant de balayer la surface du produit 1 à inspecter. Ce scanner optique comprend ici deux miroirs montés sur galvanomètre.  These first and second laser sources 10, 11 and the interferometer 12 are optically coupled to a measuring head 13 placed in the chamber 3, this measuring head 13 comprising an optical scanner for scanning the surface of the product 1 to inspect. This optical scanner here includes two mirrors mounted on galvanometer.
La première source laser 10 qui est ici un laser au dioxyde de carbone (C02), génère un premier faisceau laser de longueur d'onde 10,6 μιτι ayant une énergie de l'ordre de 200 mJ. Ce premier faisceau est reçu par le scanner optique de la tête de mesure 13 qui le dirige vers le produit 1 placé dans la zone d'inspection 5 de manière à autoriser le scan de ce produit 1 . Ce premier faisceau laser génère des ondes ultrasonores dans le produit 1 à inspecter. The first laser source 10 which is here a carbon dioxide (CO 2 ) laser, generates a first laser beam of wavelength 10.6 μιτι having an energy of the order of 200 mJ. This first beam is received by the optical scanner of the measuring head 13 which directs it to the product 1 placed in the inspection zone 5 so as to allow the scan of this product 1. This first laser beam generates ultrasonic waves in the product 1 to be inspected.
Le deuxième faisceau émis par la deuxième source laser 1 1 couplée optiquement à la même tête de mesure optique 13, est également envoyé par cette tête de mesure 13 vers le produit 1 à inspecter. Une partie de ce deuxième faisceau est alors réfléchie par le produit 1 en étant déphasée par les ondes ultrasonores générées par le premier faisceau dans ce produit 1 . The second beam emitted by the second laser source 1 1 optically coupled to the same optical measurement head 13, is also sent by this measuring head 13 to the product 1 to inspect. Part of this second beam is then reflected by the product 1 being out of phase by the ultrasonic waves generated by the first beam in this product 1.
Le faisceau laser réfléchi est alors reçu par l'interféromètre 12 apte à générer un signal électrique représentatif de cette partie de faisceau réfléchi ainsi mesurée. Ce signal électrique est envoyé vers l'unité centrale pour traitement en vue de sa comparaison avec un ou plusieurs paramètres de référence du produit 1 .  The reflected laser beam is then received by the interferometer 12 capable of generating an electrical signal representative of this reflected beam portion thus measured. This electrical signal is sent to the central processing unit for comparison with one or more reference parameters of the product 1.
Si le produit 1 s'avère conforme, le tapis roulant 2 avance pour évacuer ce produit 1 et placer dans la zone d'inspection 5, un nouveau produit 1 à inspecter.  If the product 1 is compliant, the treadmill 2 advances to evacuate this product 1 and place in the inspection zone 5, a new product 1 to inspect.
Alternativement, le scanner optique peut comporter un seul miroir de balayage suivant un axe perpendiculaire à l'axe longitudinal du tapis roulant 2. Le tapis roulant est alors utilisé comme second axe de balayage de manière à autoriser le scan de chaque produit 1 .  Alternatively, the optical scanner may comprise a single scanning mirror along an axis perpendicular to the longitudinal axis of the treadmill 2. The treadmill is then used as a second scanning axis so as to allow the scan of each product 1.
Le deuxième faisceau laser est émis ici par un laser solide pompé par diode, tel qu'un laser Nd :YAG émettant un faisceau laser de longueur d'onde λ = 1064 nm et d'une puissance typiquement de 150W. L'interféromètre 12 est ici un interféromètre de Fabry-Perot et/ou un interféromètre de mélange à deux ondes (TWM - "Two-wave mixing interferometer").  The second laser beam is emitted here by a diode pumped solid laser, such as an Nd: YAG laser emitting a laser beam of wavelength λ = 1064 nm and a power typically of 150W. The interferometer 12 is here a Fabry-Perot interferometer and / or a two-wave mixing interferometer (TWM).
L'enceinte de sécurité 3 est réalisée dans un matériau opaque pour les longueurs d'onde des faisceaux lasers en fonctionnement pour prévenir toute fuite de lumière laser susceptible de nuire à la santé des opérateurs en activité sur la ligne de production.  The security enclosure 3 is made of an opaque material for the wavelengths of the laser beams in operation to prevent any leakage of laser light that could harm the health of operators operating on the production line.

Claims

REVENDICATIONS
1 . Système de contrôle de la qualité d'un objet, caractérisé en ce qu'il comprend 1. Quality control system of an object, characterized in that it comprises
- une enceinte de sécurité (3) comportant un port d'entrée par lequel ledit objet à inspecter est introduit dans ladite enceinte et au moins un port de sortie, ladite enceinte ayant une zone d'inspection (5),  a security enclosure (3) comprising an input port through which said object to be inspected is introduced into said enclosure and at least one output port, said enclosure having an inspection zone (5),
- un dispositif de transport pour acheminer ledit objet à inspecter dans ladite zone d'inspection (5) et assurer son évacuation au travers dudit au moins un port de sortie,  a transport device for conveying said object to be inspected into said inspection zone (5) and ensuring its evacuation through said at least one exit port,
- un appareil de pesée (7) pour peser ledit objet dans ladite zone d'inspection (5),  a weighing apparatus (7) for weighing said object in said inspection zone (5),
- un ensemble de mesure dimensionnelle sans contact de l'objet dans ladite zone d'inspection (5), comprenant un ensemble de mesure dimensionnelle par interférométrie laser et/ou un ensemble de mesure par projection d'un motif lumineux et détection par un système de stéréovision (8, 9),  a set of non-contact dimensional measurement of the object in said inspection zone (5), comprising a laser interferometry dimensional measuring assembly and / or a projection set of a luminous pattern and detection by a system of stereovision (8, 9),
- un ensemble d'analyse de la structure de l'objet dans ladite zone d'inspection (5) par faisceaux lasers, respectivement et/ou par rayons X, et en ce que  a set of analysis of the structure of the object in said inspection zone (5) by laser beams, respectively and / or by X-rays, and in that
- ladite enceinte de sécurité (3) est réalisée dans un matériau opaque pour les longueurs d'onde desdits faisceaux lasers en fonctionnement, respectivement, pour les longueurs d'onde desdits faisceaux lasers en fonctionnement et lesdits rayons X, pour prévenir toute fuite de rayonnement.  said security enclosure (3) is made of an opaque material for the wavelengths of said operating laser beams, respectively, for the wavelengths of said operating laser beams and said X-rays, to prevent radiation leakage .
2. Système selon la revendication 1 , caractérisé en ce que ledit ensemble d'analyse de la structure de l'objet dans ladite zone d'inspection (5) comprend:  2. System according to claim 1, characterized in that said set of analysis of the structure of the object in said inspection zone (5) comprises:
- une première source laser (10) destinée à générer un premier faisceau laser pour créer des ondes ultrasonores dans ledit objet à inspecter, - une deuxième source laser (1 1 ) destinée à générer un deuxième faisceau laser pour illuminer ledit objet à inspecter,  a first laser source (10) for generating a first laser beam for creating ultrasound waves in said object to be inspected, a second laser source (1 1) for generating a second laser beam for illuminating said object to be inspected,
- un interféromètre (12) pour mesurer une partie du deuxième faisceau réfléchie par ledit objet à inspecter, ledit interféromètre (12) étant apte à générer un signal électrique relatif à cette mesure, - lesdites sources laser (10, 1 1 ) et ledit interféromètre (12) étant couplées optiquement à une tête de mesure optique (13) placée dans ladite enceinte (3), ladite tête de mesure (13) comportant un scanner optique. an interferometer (12) for measuring a part of the second beam reflected by said object to be inspected, said interferometer (12) being able to generate an electrical signal relating to this measurement, said laser sources (10, 11) and said interferometer (12) being optically coupled to an optical measuring head (13) placed in said enclosure (3), said measuring head (13) comprising an optical scanner.
3. Système selon la revendication 1 ou 2, caractérisé en ce que ledit ensemble d'analyse de la structure de l'objet dans ladite zone d'inspection (5) comprend une source de rayons X et un capteur, l'objet à inspecter positionné dans ladite zone d'inspection (5) étant placé entre ladite source de rayons X et ledit capteur.  3. System according to claim 1 or 2, characterized in that said set of analysis of the structure of the object in said inspection zone (5) comprises an X-ray source and a sensor, the object to be inspected. positioned in said inspection zone (5) being placed between said X-ray source and said sensor.
4. Système selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'il comprend un détecteur de présence pour stopper ledit dispositif de transport lorsque l'objet à inspecter est placé dans ladite zone d'inspection (5)  4. System according to any one of claims 1 to 3, characterized in that it comprises a presence detector for stopping said transport device when the object to be inspected is placed in said inspection zone (5).
5. Système selon l'une quelconque des revendications 1 à 4, caractérisé en ce que ledit appareil de pesée (7) émettant un signal en réponse à la pesée dudit objet, ledit ensemble de mesure dimensionnelle sans contact de l'objet émettant un signal de mesure dimensionnelle de l'objet et ledit ensemble d'analyse de la structure de l'objet émettant un signal relatif à la mesure d'analyse structurelle dudit objet, le système comporte une unité centrale reliée à un support d'enregistrement comprenant au moins un fichier d'informations préalablement enregistré sur ce support d'enregistrement pour définir les paramètres de référence dudit objet, ladite unité centrale recevant chacun desdits signaux pour les comparer auxdits paramètres de référence.  5. System according to any one of claims 1 to 4, characterized in that said weighing apparatus (7) emitting a signal in response to the weighing of said object, said set of non-contact dimensional measurement of the object emitting a signal for dimensionally measuring the object and said analysis assembly of the structure of the object emitting a signal relating to the structural analysis measurement of said object, the system comprises a central unit connected to a recording medium comprising at least an information file previously recorded on this recording medium for defining the reference parameters of said object, said central unit receiving each of said signals for comparison with said reference parameters.
6. Système selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'il comprend un dispositif de marquage dudit objet lorsque l'évaluation de sa qualité révèle un ou plusieurs défauts.  6. System according to any one of claims 1 to 5, characterized in that it comprises a marking device of said object when the evaluation of its quality reveals one or more defects.
7. Système selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'il comprend de plus un ensemble de contrôle de l'aspect de surface de l'objet et/ou un dispositif de tomographie par cohérence optique.  7. System according to any one of claims 1 to 6, characterized in that it further comprises a control unit of the surface appearance of the object and / or an optical coherence tomography device.
8. Installation pour la production d'un objet équipée d'un système de contrôle de la qualité dudit objet selon l'une quelconque des revendications 1 à 7.  8. Installation for the production of an object equipped with a quality control system of said object according to any one of claims 1 to 7.
9. Procédé d'évaluation de la qualité d'un objet dans lequel on positionne ledit objet dans une zone d'inspection (5) puis on réalise au moins la première desdites étapes suivantes sur cet objet placé dans cette zone d'inspection (5): 9. A method for evaluating the quality of an object in which said object is positioned in an inspection zone (5) and then at least the first of the following steps on this object placed in this inspection zone (5):
a) on pèse ledit objet,  a) weighing said object,
b) on réalise une mesure dimensionnelle sans contact dudit objet dans ladite zone d'inspection (5) avec un ensemble de mesure dimensionnelle sans contact comprenant un ensemble de mesure dimensionnelle par interférométrie laser et/ou un ensemble de mesure par projection d'un motif lumineux et détection par un système de stéréovision (8, 9),  b) a non-contact dimensional measurement of said object in said inspection zone (5) is carried out with a non-contact dimensional measuring assembly comprising a laser interferometry dimensional measuring assembly and / or a projection assembly of a pattern light and detection by a stereovision system (8, 9),
c) on réalise une analyse structurelle dudit objet, et en ce que  c) a structural analysis of said object is carried out, and in that
- à l'issue de chacune de ces étapes, on compare le résultat obtenu avec une ou plusieurs mesures de référence, si elles correspondent aux incertitudes de mesure près, on passe à l'étape suivante, si elles sont distinctes, on met l'objet au rébus.  - at the end of each of these steps, the result obtained is compared with one or more reference measurements, if they correspond to the uncertainties of measurement, we proceed to the next step, if they are distinct, we put the object to the rebus.
10. Procédé selon la revendication 9, caractérisé en ce qu'on contrôle en plus l'aspect de surface de cet objet.  10. The method of claim 9, characterized in that it also controls the surface appearance of this object.
1 1 . Procédé selon la revendication 9 ou 10, caractérisé en ce qu'à l'étape d'analyse structurelle dudit objet, on envoie un premier faisceau laser sur ledit objet pour générer des ondes ultrasonores dans ledit objet à inspecter, on illumine ledit objet avec un second faisceau laser de sorte qu'une partie de ce deuxième faisceau soit réfléchie par ledit objet et on mesure par interférométrie cette partie du deuxième faisceau réfléchie, l'ensemble de ces faisceaux laser passant par une même tête de lecture optique.  1 1. Method according to claim 9 or 10, characterized in that in the step of structural analysis of said object, a first laser beam is sent on said object to generate ultrasonic waves in said object to be inspected, said object is illuminated with a second laser beam so that a portion of the second beam is reflected by said object and this part of the second reflected beam is measured by interferometry, all of these laser beams passing through the same optical reading head.
PCT/EP2012/070510 2011-10-17 2012-10-16 System and method for controlling the quality of an object WO2013057115A1 (en)

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US14/349,187 US20140249663A1 (en) 2011-10-17 2012-10-16 System and method for controlling the quality of an object
RU2014119933A RU2620868C2 (en) 2011-10-17 2012-10-16 System and method for controlling product quality
CA2852791A CA2852791A1 (en) 2011-10-17 2012-10-16 System and method for controlling the quality of an object
EP12775479.4A EP2769196A1 (en) 2011-10-17 2012-10-16 System and method for controlling the quality of an object
MX2014004569A MX338117B (en) 2011-10-17 2012-10-16 System and method for controlling the quality of an object.
SG11201400932PA SG11201400932PA (en) 2011-10-17 2012-10-16 System and method for controlling the quality of an object
CN201280050168.2A CN104114992B (en) 2011-10-17 2012-10-16 System and method for controlling mass of object
BR112014009088A BR112014009088A2 (en) 2011-10-17 2012-10-16 system and method for controlling the quality of an object

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FR1159357A FR2981450B1 (en) 2011-10-17 2011-10-17 SYSTEM AND METHOD FOR CONTROLLING THE QUALITY OF AN OBJECT

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FR (1) FR2981450B1 (en)
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